HOTP TOTP CLI


HMAC- and Time-Based One-Time Password (HOTP / TOTP) Command Line Interface

Install via npm

``sh
$ npm install --global hotp-totp-cli
`

Will install two CLI utilities, hotp and totp.

Usage

The key can be either a base32 ([RFC 3548]) encoded string, or an optauth: URI in [Key URI Format]

[RFC 3548]: http://tools.ietf.org/html/rfc3548
[Key URI Format]: https://github.com/google/google-authenticator/wiki/Key-Uri-Format

$3

`
Usage: totp [options]

Options:

-d, --digits Number of passcode digits to generate [6-10] (Default: 6)
-a, --algorithm HMAC algorithm to use (Default: sha1)
-p, --period Seconds the passcode is valid for (Default: 30)
-t, --time Time for which to calculate the passcode
-e, --epoch T-0

-h, --help
-v, --version

`

$3

`
Usage: hotp [options]

Options:

-c, --counter Counter value to calculate the passcode for
-a, --algorithm HMAC algorithm to use (Default: sha1)
-d, --digits Number of passcode digits to generate [6-10] (Default: 6)

-h, --help
-v, --version

`

Examples

$3

Avoid manually typing your OTP token with a CLI credential manager (i.e. [pass]):

[pass]: https://www.passwordstore.org/

`bash
npm publish --otp $( totp $( pass 2fa/npm.key ) )
``

NOTE: This is probably a bad idea if your GPG passphrase is stored anywhere else except your head.